July weather forecast
Roxana, IL

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Weather in July

July, the same as June, is a moderately hot summer month in Roxana, Illinois, with an average temperature fluctuating between 85.3°F (29.6°C) and 67.6°F (19.8°C).

Temperature

July, on average, is the warmest month, registering a high temperature of 85.3°F (29.6°C) and a low of 67.6°F (19.8°C).

Heat index

Throughout July, the heat index is evaluated at a sweltering 96.8°F (36°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

The most humid month in Roxana, Illinois, is July, with an average relative humidity of 80%.

Rainfall

In Roxana, in July, during 16.3 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. In Roxana, during the entire year, the rain falls for 138 days and collects up to 23.9" (607mm) of precipitation.

Snowfall

In Roxana, snow does not fall in May through October.

Daylight

The average length of the day in July in Roxana, Illinois, is 14h and 34min.
On the first day of July, sunrise is at 5:39 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:12 pm CDT.

Sunshine

In Roxana, the average sunshine in July is 10.3h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 6 during July translates into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

What are the warmest months in Roxana?

July stands out as Roxana's warmest month, with temperatures ranging between an average high of 85.3°F (29.6°C) and a low of 67.6°F (19.8°C).

Is it hot in Roxana during July?

July temperatures vary between a high-temperature of 85.3°F (29.6°C) and a low-temperature of 67.6°F (19.8°C). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 96.8°F (36°C).

What is the most humid month in Roxana?

With an average relative humidity of 80%, July is the most humid month in Roxana.

What is the average humidity in July in Roxana?

In Roxana, the average relative humidity in July is 80%.

How many days does it rain in July in Roxana?

In Roxana, Illinois, in July, during 16.3 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

When it does not snow in Roxana?

In Roxana, Illinois, snow does not fall in May through October.

How many hours of daylight does Roxana have in July?

In July, the average day length is 14h and 34min.

When are sunrise and sunset in July in Roxana?

On the first day of July in Roxana, sunrise is at 5:39 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:12 pm CDT.

How long on average sun shines in July in Roxana?

In Roxana, the average sunshine duration in July is 10.3h.

When is the highest UV index in Roxana?

The months with the highest UV index in Roxana, Illinois, are May through August, with an average maximum UV index of 6.

What is the UV index reading in July in Roxana?

The average daily maximum UV index in July in Roxana is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Roxana, IL

Average temperature in July - Roxana, IL
  • Average high temperature in July: 85.3°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in July: 67.6°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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Average pressure in July
Roxana, IL

Average pressure in July - Roxana, IL
  • Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in July
Roxana, IL

Average wind speed in July - Roxana, IL
  • Average wind speed in July: 5.7mph

The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).

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Average humidity in July
Roxana, IL

Average humidity in July - Roxana, IL
  • Average humidity in July: 80%

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in July
Roxana, IL

Average rainfall in July - Roxana, IL
  • Average rainfall in July: 2.48"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is February (1.14").

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Average rainfall days in July
Roxana, IL

Average rainfall days in July - Roxana, IL
  • Average rainfall days in July: 16.3 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (5.6 days).

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Average snowfall in July
Roxana, IL

Average snowfall in July - Roxana, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Roxana, IL

Average snowfall days in July - Roxana, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
Roxana, IL

Average daylight in July / Average sunshine in July - Roxana, IL
  • Average daylight in July: 14h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in July: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).

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Average sunshine days in July
Roxana, IL

Average sunshine days in July - Roxana, IL
  • Average sunshine days in July: 12.3 days

The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is July (12.3 days).

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Average UV index in July
Roxana, IL

Average UV index in July - Roxana, IL
  • Average UV index in July: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in July
Roxana, IL

Average cloud cover in July - Roxana, IL
  • Average cloud cover in July: 29

The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June, July and August (Cloud cover 29).

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Average visibility in July
Roxana, IL

Average visibility in July - Roxana, IL
  • Average visibility in July: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Roxana, Illinois, USA

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